Home / 18,121.83-25,009.16-10,163.43

Finding the Fourth Proportional to 18,121.83, 25,009.16 and 10,163.43

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Solution

The fourth proportional to 18,121.83, 25,009.16 and 10,163.43 is: 14,026.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.83 : 25,009.16 = 10,163.43 : x
  2. Step 2: Convert to fraction form
    18,121.83/25,009.16 = 10,163.43/x
  3. Step 3: Cross multiply
    18,121.83x = 25,009.16 × 10,163.43
  4. Step 4: Simplify right side
    18,121.83x = 254,178,847.02
  5. Step 5: Solve for x
    x = 254,178,847.02/18,121.83
  6. Step 6: Final answer
    x = 14,026.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.